Mining-machine



(No Model.) 1 I J. W. HARRISON.

MINING MACHINE.

,424. Patented Nov. 14, 1882.

llNiTnD STATES JONATHAN lV. HARRISON, OF YPSILANTI, MICHIGAN.

MINING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 267,424, dated November 14, 1882.

Application tiled July 20, 1882. (No model.)

To all whom fit may concern:

Be it known that I, JONATHAN W. HARRI- soN, a citizen ofthe United States, residing at Ypsilanti, iu the county of Vashtenaw and State oi' Michigan, have invented certain new and useful Im provemeuts in Mining-Machines, of which the following is a specification.

My invention relates to that class of miningmachines which are actuated air, steam, or other duid; and the object of said invention is to provide such machines with a mechanism to automatically feed the machine forward, for the purpose of keeping the drill well up to its work, and for propelling the machine from place to place, as desired, thus relieving the operator ofthe exertion incident to such duties.

The said invention also has forits object the provision ot' a lighting device attached to the frame of the machine.

To this end my invention consists of a drillcylinder supported upon two carrying-wheels, each of which is provided with a disk or circular rim having gear-teeth formed upon its periphery, said rims being attached to or formed upon the inner sides of the carryingwheels. Acting iu connection with these rims,

' through the medium ot' a pair of pinion-wheels,

the teeth of each of which mesh with the teeth on each of the rims, is a double rotary engine mounted upon the valve-chest of the drill-en gine, and actuated by the same volume of fluid (steam or air) which actuates the drillingengine.

My invention also consists of two tubular reservoirs containing burning-fluid, mounted upon the sides of the machine, and carrying each atits forward end a burner for supplying light to the locality in which the machine is operating, the position of said burners being most advantageous to the ends for which they are intended. At the same time these reservoirs constitute the means by which the machine is guided in its work, and also in its movements from place to place, for which purpose the rear extremity of each reservoir is provided with a handle within convenient reach of the operator.

In order that myinventiou may be fully understood, I will proceed to describe it with reference to the accompanying drawings, forming a part of this speciticatiomand in which- Figure l is a side elevation of the machine.

l Fig. 2 is a transverse vertical section ou the line 2 2 of Fig. l from the front of the engine. Fig. 3 is a plan view of the cylinder-casing of the propelling-engine. Fig. 4 is a plan View of the valve-casing ot' the propelling-engine. Fig. 5 is a longitudinal vertical section of the propelling-engine. Fig. 6 is a detached view of the plug-valve of the propelling-engine. Fig. 7 is a side elevation of one of the carrying-wheels. Fig. 8 is a vertical longitudinal section of one ot' the reservoirs. Fig. 9 is a detached view of the drill and drill-rod, the latter being partly in section and the former in perspective.

rlhe cylinder A of the machine is provided on each side, about midway of the length thereof, with a trunnion, a, formed with a shoulder, a', anda cylindrical outer portion, a2, which constitutes the spindle upon which one of the carrying-wheels B is mounted. At its outer extremity each ofthe spindles a2 is provided with a square or polyangular head, a3, in which is formed an eye to receive a key, a4, for a purpose presently to be stated. Each of the wheels B is provided on inner side with a ratchet-disk, b, the teeth of which incline toward the rear of the machine, as shown, and also with a gear-disk, b', the teeth of which are formed radially upon its periphery, as shown. A pinion-wheel connected with a rotary engine, hereinafter described, engages with each of the gear-disks b for the purpose of feeding the engine forward, and also for propelling it over the ground from point to point. lwo pawls, l, are hinged, one at each end of a cross-head, 2, upon the rear end of the valvechambe'r of the drill-engine, and engage with each' of the ratchet-disks b, and assist the propeiling-engine to prevent retrogression of the machine while iu operation.

At each side of the machine is a bracket,C, the lower end of which is formed with a square or polyangular opening, c, by means of which the said brackets are fitted into the square ends a3 of the spindle a2. Each of these brackets C is secured into the end of each trunnion a by a key, a4, passing transversely through the lower part of said bracket, and through an eye in the head a3 ofthe trunnion a. At their upper ends the brackets C are provided with eyes c2, through which the tubular rods D pass. These rods D are hollow IOO tubes, supported partly by the brackets C, as before stated, and also at their rear portions by the rear cross-head, 2, before mentioned,on the valve-chamber of the drill-engine, said cross-head being provided with openings 22, through each of which one of the rodsD passes, and a binding-screw, 3, is placed at each end of the cross-head 2, the lower end of which binding-screw presses upon the rod D to secure it in position. At the rear end of each of the rods D is attached a handle, d, within convenient reach of the operator, whereby said operator is enabled to guide the machine while passing from point to point, and also to shift its position when drilling. At the forward extremity of each rod is a burner, E, ot' suitable form, while near the rear end of each of said rods is a filling-aperture, d', the entire interior portions of the rods D from the filling-apertures CZ to the lamps E being utilized as reservoirs for the burning-fluid.

The drill-engine consists of the cylinder A, into which steam or air is introduced through a throttle, F, resting upon the val ve-chamber, and contains a cylindrical piston chamber, within which is a cylindrical piston-head connected to a piston-rod, J, extendingoutthrough the forward bead of the cylinder A; a valvechest, G, situated above the cylinder and containing a double connected slide valve working over induction and exhaust ports, arranged in pairs at each end of the valve-chamber, by which ports connection is effected between the valve-chamber and the piston-chamber. A valve-operating mechanism is inclosed in a casing, II, resting upon the cylinder A at its rear end. As these parts bear only an incidental relation to those parts of the machine which constitute my present invention, a particular' description ot' them is not considered necessary, and they are illustrated in the drawings only with suiicient clearness to impart an understanding oftheir connection with the iin-l portant features of the present invention.

The auxiliary engine for propelling the machine from point to point, and for automatically feeding the same forward when the drill-engine is in operation,` so as to keep the drill well up to its work, is placed on top of the valve-chest G ofthe drill-engine, and consists of a pistonchamber, I, and a valve-chamber, I, suitably secured in position upon the said drill-engine valve-chest. In .the upper side of the valveehest G is port g, through which steam or air from the valve-chamber of the drill-engine is supplied to the auxiliary engine, passing through the port g into a channel extending vertically through the piston-casing I and through the valve-casing I. The piston-casing I is divided into two piston-chambers, by a vertical diaphragm, 2, extending transversely of the length of the piston-casing I. IVithin the piston-chambers t' are the rotary cylindrical pistons 3 1, respectively. The piston 3 is mounted eccentrically on a shaft, 5,whieh passes out through the end or head of its chamber, and carries on its outer end a pinionwheel, 6, the teeth of which mesh with the teeth of the gear-disk b on the left-hand carryingwheel B. The inner end of the shaft t5 is formed with a pin or spindle, 7, which passes through an opening, 11, in the center of the diaphragm 2, and projects a short distanceinto the opposite piston-chamber, This pin T forms the inner bearing for the shaft 2 to permit of the independent rotation of the pistons when the apparatus is being turned on its wheels B B. In the chamber fi is the rotary piston 4, mounted eccentrically on a shaft, 2, extending out through the endor head of its chamber, and carrying on its outer end a pinion-wheel, 111, the teeth vof which mesh with the teeth ofthe gear-disk b on the right-hand carrying-wheel B. The inner end of the shaft 9 is formed with a socket or recess, 11, which receives the spindle 7 ot' the shaft 5, projecting through the opening 11 into the chamber C Two vertical elongated channels, 12 13, extend from the top of the chambers respectively, through the casings I I', as shown, and contain abutmeiits 14 15, respectively, the lower ends of which abutments rest upon the pistons @'3 4, rising` and falling as the latter rotate.

An inductionpassage, @'16, for air or steam, communicates at its lower end with the portg of the drill-engine valve-chamber, and extends vertically through the casings I and I', communieating 'at its upper end with a transverse channel, @'17, formed in the upper part of the casing I, and extending horizontally tothe top of abutment-channel 13. In the forward vertical sides ofthe abutment-channels 12 and 111, respectively, and opening therefrom, are horizontal channels 12 12, extending into a cylindrical channel, 211, extending longitudinally ot the casing I. This channel 20 forms the seat for a cylindrical plug-valve, 21, which is held in its seat by a gland, 22, as shown, and is provided on its outer extremity with a head, 23, and a handle, 24. This valve 21 is provided with two angular channels, 25 @'26, which communicate (when the valve is opened) at their upper ends with the channels 11 and 19, respectively. The lower ends of the plug-valve channels 2G communicate respectively (when the valve is opened) with ind notion-channels 27 211, which extend verticallydownward through the easings I and I, and open respectively at their lowerI ends into the piston-chambers on the live-steam or air sides of the abutmentst'14 and 15. From the upper sides ot' the piston chambers on the opposite sides of the abutments from the induction-openings 27 211, respectively, open exhaust-channels 22 30, which extend vertically upward and communicate, through short horizontal passages 31 32, with an exhaust-channel, 33, extending horizontally in the casing I, and opening to the air at its outer end, as shown.

The piston-rod J of the drill-engine extends ont through the forward head of the cylinder A, where itis surrounded by suitable packing, and outside of said head it is formed square or non-circular externally, such squared por- IOO IOS

IIO

IIS

acarrea j 3 tion J forming the drill-rod. In its forward end is a square recess or socket, j, and through two of its opposite sides is an elongated slot, j', to receive a key, j2. rlhe drill J2 is provided at its inner extremity with a square tongue, j, provided with two transverse elongated slots, jf, each of which registers with the slot j of the drill-rod J. The tonguej3 is inserted into the socketj of the drill-rod J. The keyj2 is inserted into theslotj ofthe said drill-rod, passing through one of the slots j* of' the drill J2 and locking the parts. When the position of the drill is to be changed the keyj2 is withdrawn, the drill J2 pulled out of the socketj, turned half around, and again inserted into the socketj, bringing the other slot,j*, in position to be locked by the key )2.

The operation of myinvention is as follows: Supposing the machine to be in proper position for drilling, steam or air is introduced into the drill-engine through its throttle F, and said 'engine works with reciprocatory strokes in a manner not necessarily to be described. Meantime the air, steam, or other actuating-fluid passes in part through the opening or port g and upward through the channel @'16 and i, exerting its pressure on the upper ends of the abutments @'14 i12, forcing them downward upon the pistons i1 i". The valve @'21 being opened, the current passes through the passages @'18 i12, angularl passages t25z'26, and passages @'21 t28, en-v teringthepistonchambersi on the live-steam or air sides of the abutments i1* 15. As the pistons revolve the steam passes around to the exhaust sides of the abutments and passes upward through the exhaust-channels @'22 'i311 i131 32 and out through the passage 33, escapinginto the air. VVhtn the drill-engine has nished its work, and it is desired to transport the machine to another place for future operations, the said drill-engine is thrown out of gear by means of mechanism contained in the casing H. rIhe steam, air, or other fluid passing through the valve-chest G enters the propelling-engine through the port g, channel @'16, Svc., as above described, and the engine works as before described, the result being that, its progress not being impeded by the surface before being drilled, the machine is propelled over the ground to the place desired, and upon arriving at such place the drilling and feeding operations before described are repeated.

During the operation of drilling, and while the machine is being propelled over the ground also, the machine is controlled by the operator liavingholdofthehandlesdoftheguide-rods D.

Duringtheoperation of drilling, and at other times, theburners E are lighted, and (owing to their peculiarly advantageous position) vsufciently illuminate the surroundings to enable the operator to see clearlyand relieve him of the necessity of carrying a hand-lantern.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

l. Amining-machine provided with an auxiliary engine for propellingitfrom point to point and for feeding it forward during the operation of drilling, so' that the drill shall be kept well up to its work, said auxiliary engine being attached directly to the drill-engine casing and receiving its motive fluid directly therefrom, substantially as set forth.

2. A mining-machine the drilling-engine of which is mounted upon two or more carryingwheels having each a gear disk or rim upon its inner side, in combination with an auxiliary propellingand feeding engine operating in connection with the carrying-wheels, through the medium of two or more pinion-wheels engaging with the gear-disks ofsaid carrying-wh eels, substantially as described.

3. ln a propelling and feeding engine for mining-machines, the piston-casing I, having the diaphragm i2, provided with the opening i, in combination with the pistont'3,1nounted eccentrically 'on the shaft i5, saidshaft being provided with thepin t7, and the piston i4, mounted eccentrically on the shaft i2, said shaft being provided with the recess or socket i111, substantially as and for the purposes set forth.

4. ln a propelling and feeding engine for mining-machines, the pistonst'3 i4, mounted. eccentrically in piston-chambers z' l', and provided with pinions i i1", engaging with the gear-disks ofthe carrying-wheels B B, in combination with abutments 14215, workingin abutment-channels 12 @'13, and suitable induction and eduction channels, substantially as described.

5. In a propelling and feeding engine for mining-machines, the induction-passages @'12, i, 18,1'19, 20, @'27, and i211, in combination with the plug-valve i521, with its angular passages i25and 26, substantially as described.

' 6. In a miningmachine, the brackets O, mounted at; their lower ends on the trunnionheads a3, and provided at their upper ends with eyes c2, and the cross-head 2, with handnuts 3, and with eyes in its ends, in combina- ICO tion with the hollow guide rods and oil-reservoirs D, provided with filling-apertures d', and lamps or burners E, substantially as and for the purposes set forth.

7. In a mining-machine, the guide-rods D, provided with handles d, in combination with the trunnions a, having spindles a and square heads a2, the wheels B, and brackets C, as set forth.

JONATHAN W. HARRISON.

Witnesses: Y

PHILANDER M. CAMPBELL, THoMAs NINDE. 

